MESON Chess Problem Database

Problem Display
PID: 63249 (B7/4Q3/2p4N/3PNR2/K2Bk3/b1P3qR/8/7r w - - 0 1)

Bogdanov, Evgeny Mikhailovich

1st Prize, Ribak Primoria, 1982

B7/4Q3/2p4N/3PNR2/K2Bk3/b1P3qR/8/7r

#2

10 + 5

3752 FIDE Album (1980-1982) 1988
23 Die Schwalbe 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Bxc6#
    • 1...Qxe5
      • 2.Qxe5#
    • 1...c5
      • 2.d6#
  • Tries
    • 1.Bxc6?
      • threat
        • 2.d6#
      • 1...Qxc3
        • 2.Qh4#
      • 1...Qg8
        • 2.Re3#
      • 1...Bd6!
  • Keys
    • 1.d6!
      • threat
        • 2.Bxc6#
      • 1...Kd5
        • 2.Bxc6#
      • 1...Qxc3
        • 2.Sxc6#
      • 1...Qg8
        • 2.Sef7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(d);OGATEB,P_SPINP(e),S_FLIGHT,XP(E)::B(J),XP(e)
    • Q(c);OGATE,P_SPINQ(c),XS(F)::QAR1(I),XQ(c)
    • P(e);::B(J)+P(E)
  • Tries
    • Try
      • B(J);XP(e)
      • Threat
        • B(J)+P(E)
      • Vars
        • Q(c);N_GUARD,XP(A)::QAR(I)
        • Q(c);OGATE::R1(B)
      • Refutation
        • B(b);
  • Actual
    • P(E);P_PINP(e)
    • Threat
      • B(J),XP(e)
    • Vars
      • K(d);S_FLIGHT::B(J),XP(e)
      • Q(c);N_GUARD,XP(A)::QAR(I)+S(F),XP(e)
      • Q(c);N_GUARD::QAR(I)+S(F)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).